use /etc/aliases or /etc/mail/aliases?

[Honza Horak]

Hi,

I just wonder what is the difference between /etc/aliases and 
/etc/mail/aliases, if any. I guess /etc/aliases is only newer location 
of the same file, am I right?

I'm thinking of this because ypserv uses /etc/mail/aliases by default, 
but it seems to be obsolete (Fedora now uses /etc/aliases), see 
https://bugzilla.redhat.com/show_bug.cgi?id=699826

Does anybody know the reason of the location change or do I miss something?

I'm tempting to change the default location in ypserv too, does anybody 
see a problem with that?

Cheers,

Honza